CVE-2022-40262Write-what-where Condition in Aptio

Severity
8.2HIGHNVD
EPSS
0.1%
top 81.89%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedSep 20
Latest updateSep 21

Description

A potential attacker can execute an arbitrary code at the time of the PEI phase and influence the subsequent boot stages. This can lead to the mitigations bypassing, physical memory contents disclosure, discovery of any secrets from any Virtual Machines (VMs) and bypassing memory isolation and confidential computing boundaries. Additionally, an attacker can build a payload which can be injected into the SMRAM memory. This issue affects: Module name: S3Resume2Pei SHA256: 7bb29f05534a8a1e010443213

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HExploitability: 1.5 | Impact: 6.0

Affected Packages2 packages

CVEListV5ami/aptio5.x
NVDami/aptio_v5.0

🔴Vulnerability Details

2
GHSA
GHSA-5fpf-9vcp-wpjr: A potential attacker can execute an arbitrary code at the time of the PEI phase and influence the subsequent boot stages2022-09-21
CVEList
The arbitrary write vulnerability in S3Resume2Pei leads to arbitrary code execution during PEI phase.2022-09-20
CVE-2022-40262 — Write-what-where Condition in Aptio | cvebase